update links to point to main branch

Author: danhellem

articles/iot-central/core/concepts-get-connected.md

@@ -59,7 +59,7 @@ To learn more, see [How to connect devices with X.509 certificates](how-to-conne
 
 For testing only, you can use the following utilities to generate root, intermediate, and device certificates:
 
-- [Tools for the Azure IoT Device Provisioning Device SDK](https://github.com/Azure/azure-iot-sdk-node/blob/master/provisioning/tools/readme.md): a collection of Node.js tools that you can use to generate and verify X.509 certificates and keys.
+- [Tools for the Azure IoT Device Provisioning Device SDK](https://github.com/Azure/azure-iot-sdk-node/blob/main/provisioning/tools/readme.md): a collection of Node.js tools that you can use to generate and verify X.509 certificates and keys.
 - [Manage test CA certificates for samples and tutorials](https://github.com/Azure/azure-iot-sdk-c/blob/master/tools/CACertificates/CACertificateOverview.md): a collection of PowerShell and Bash scripts to:
   - Create a certificate chain.
   - Save the certificates as .cer files to upload to your IoT Central application.
@@ -102,7 +102,7 @@ IoT Central supports the following attestation mechanisms for individual enrollm
 - **X.509 certificates:** To create an individual enrollment with X.509 certificates, open the **Device Connection** page, select **Individual enrollment** as the connection method, and **Certificates (X.509)** as the mechanism. Device certificates used with an individual enrollment entry have a requirement that the issuer and subject CN are set to the device ID.
 
     > [!TIP]
-    > For testing, you can use [Tools for the Azure IoT Device Provisioning Device SDK for Node.js](https://github.com/Azure/azure-iot-sdk-node/tree/master/provisioning/tools) to generate a self-signed certificate: `node create_test_cert.js device "mytestdevice"`
+    > For testing, you can use [Tools for the Azure IoT Device Provisioning Device SDK for Node.js](https://github.com/Azure/azure-iot-sdk-node/tree/main/provisioning/tools) to generate a self-signed certificate: `node create_test_cert.js device "mytestdevice"`
 
 - **Trusted Platform Module (TPM) attestation:** A [TPM](../../iot-dps/concepts-tpm-attestation.md) is a type of hardware security module. Using a TPM is one of the most secure ways to connect a device. This article assumes you're using a discrete, firmware, or integrated TPM. Software emulated TPMs are well suited for prototyping or testing, but they don't provide the same level of security as discrete, firmware, or integrated TPMs. Don't use software TPMs in production. To create an individual enrollment that uses a TPM, open the **Device Connection** page, select **Individual enrollment** as the connection method, and **TPM** as the mechanism. Enter the TPM endorsement key and save the device connection information.
 

articles/iot-develop/about-iot-sdks.md

@@ -43,8 +43,8 @@ The SDKs are available in **multiple languages** providing the flexibility to ch
 | Language | Package | Source | Quickstarts | Samples | Reference |
 | :-- | :-- | :-- | :-- | :-- | :-- |
 | **.NET** | [NuGet](https://www.nuget.org/packages/Microsoft.Azure.Devices.Client) | [GitHub](https://github.com/Azure/azure-iot-sdk-csharp) | [IoT Hub](quickstart-send-telemetry-iot-hub.md?pivots=programming-language-csharp) / [IoT Central](quickstart-send-telemetry-central.md?pivots=programming-language-csharp) | [Samples](https://github.com/Azure-Samples/azure-iot-samples-csharp) | [Reference](/dotnet/api/microsoft.azure.devices.client) |
-| **Python** | [pip](https://pypi.org/project/azure-iot-device/) | [GitHub](https://github.com/Azure/azure-iot-sdk-python) | [IoT Hub](quickstart-send-telemetry-iot-hub.md?pivots=programming-language-python) / [IoT Central](quickstart-send-telemetry-central.md?pivots=programming-language-python) | [Samples](https://github.com/Azure/azure-iot-sdk-python/tree/master/azure-iot-device/samples) | [Reference](/python/api/azure-iot-device) |
-| **Node.js** | [npm](https://www.npmjs.com/package/azure-iot-device) | [GitHub](https://github.com/Azure/azure-iot-sdk-node) | [IoT Hub](quickstart-send-telemetry-iot-hub.md?pivots=programming-language-nodejs) / [IoT Central](quickstart-send-telemetry-central.md?pivots=programming-language-nodejs) | [Samples](https://github.com/Azure/azure-iot-sdk-node/tree/master/device/samples) | [Reference](/javascript/api/azure-iot-device/) |
+| **Python** | [pip](https://pypi.org/project/azure-iot-device/) | [GitHub](https://github.com/Azure/azure-iot-sdk-python) | [IoT Hub](quickstart-send-telemetry-iot-hub.md?pivots=programming-language-python) / [IoT Central](quickstart-send-telemetry-central.md?pivots=programming-language-python) | [Samples](https://github.com/Azure/azure-iot-sdk-python/tree/main/azure-iot-device/samples) | [Reference](/python/api/azure-iot-device) |
+| **Node.js** | [npm](https://www.npmjs.com/package/azure-iot-device) | [GitHub](https://github.com/Azure/azure-iot-sdk-node) | [IoT Hub](quickstart-send-telemetry-iot-hub.md?pivots=programming-language-nodejs) / [IoT Central](quickstart-send-telemetry-central.md?pivots=programming-language-nodejs) | [Samples](https://github.com/Azure/azure-iot-sdk-node/tree/main/device/samples) | [Reference](/javascript/api/azure-iot-device/) |
 | **Java** | [Maven](https://mvnrepository.com/artifact/com.microsoft.azure.sdk.iot/iot-device-client) | [GitHub](https://github.com/Azure/azure-iot-sdk-java) | [IoT Hub](quickstart-send-telemetry-iot-hub.md?pivots=programming-language-java) / [IoT Central](quickstart-send-telemetry-central.md?pivots=programming-language-java) | [Samples](https://github.com/Azure/azure-iot-sdk-java/tree/master/device/iot-device-samples) | [Reference](/java/api/com.microsoft.azure.sdk.iot.device) |
 | **C** | [packages](https://github.com/Azure/azure-iot-sdk-c/blob/master/readme.md#getting-the-sdk) | [GitHub](https://github.com/Azure/azure-iot-sdk-c) | [IoT Hub](quickstart-send-telemetry-iot-hub.md?pivots=programming-language-ansi-c) / [IoT Central](quickstart-send-telemetry-central.md?pivots=programming-language-ansi-c) | [Samples](https://github.com/Azure/azure-iot-sdk-c/tree/master/iothub_client/samples) | [Reference](/azure/iot-hub/iot-c-sdk-ref/) |
 

articles/iot-develop/libraries-sdks.md

@@ -21,8 +21,8 @@ The IoT Plug and Play libraries and SDKs enable developers to build IoT solution
 | C - Device | [vcpkg 1.3.9](https://github.com/Azure/azure-iot-sdk-c/blob/master/doc/setting_up_vcpkg.md) | [GitHub](https://github.com/Azure/azure-iot-sdk-c) | [Samples](https://github.com/Azure/azure-iot-sdk-c/tree/master/iothub_client/samples/pnp) | [Connect to IoT Hub](tutorial-connect-device.md) | [Reference](/azure/iot-hub/iot-c-sdk-ref/) |
 | .NET - Device | [NuGet 1.31.0](https://www.nuget.org/packages/Microsoft.Azure.Devices.Client) | [GitHub](https://github.com/Azure/azure-iot-sdk-csharp/tree/main/) | [Samples](https://github.com/Azure-Samples/azure-iot-samples-csharp/tree/main/iot-hub/Samples/device/PnpDeviceSamples) | [Connect to IoT Hub](tutorial-connect-device.md) | [Reference](/dotnet/api/microsoft.azure.devices.client) |
 | Java - Device | [Maven 1.26.0](https://mvnrepository.com/artifact/com.microsoft.azure.sdk.iot/iot-device-client) | [GitHub](https://github.com/Azure/azure-iot-sdk-java/tree/main/) | [Samples](https://github.com/Azure/azure-iot-sdk-java/tree/main/device/iot-device-samples/pnp-device-sample) | [Connect to IoT Hub](tutorial-connect-device.md) | [Reference](/java/api/com.microsoft.azure.sdk.iot.device) |
-| Python - Device | [pip 2.3.0](https://pypi.org/project/azure-iot-device/) | [GitHub](https://github.com/Azure/azure-iot-sdk-python/tree/master/) | [Samples](https://github.com/Azure/azure-iot-sdk-python/tree/master/azure-iot-device/samples/pnp) | [Connect to IoT Hub](tutorial-connect-device.md) | [Reference](/python/api/azure-iot-device/azure.iot.device) |
-| Node - Device | [npm 1.17.2](https://www.npmjs.com/package/azure-iot-device)  | [GitHub](https://github.com/Azure/azure-iot-sdk-node/tree/master/) | [Samples](https://github.com/Azure/azure-iot-sdk-node/tree/master/device/samples/javascript/pnp) | [Connect to IoT Hub](tutorial-connect-device.md) | [Reference](/javascript/api/azure-iot-device/) |
+| Python - Device | [pip 2.3.0](https://pypi.org/project/azure-iot-device/) | [GitHub](https://github.com/Azure/azure-iot-sdk-python) | [Samples](https://github.com/Azure/azure-iot-sdk-python/tree/main/azure-iot-device/samples/pnp) | [Connect to IoT Hub](tutorial-connect-device.md) | [Reference](/python/api/azure-iot-device/azure.iot.device) |
+| Node - Device | [npm 1.17.2](https://www.npmjs.com/package/azure-iot-device)  | [GitHub](https://github.com/Azure/azure-iot-sdk-node) | [Samples](https://github.com/Azure/azure-iot-sdk-node/tree/main/device/samples/javascript/pnp) | [Connect to IoT Hub](tutorial-connect-device.md) | [Reference](/javascript/api/azure-iot-device/) |
 | Embedded C - Device | N/A | [GitHub](https://github.com/Azure/azure-sdk-for-c/)| [Samples](tutorial-connect-device.md?pivots=programming-language-embedded-c#samples) | [How to use Embedded C](tutorial-connect-device.md?pivots=programming-language-embedded-c) | N/A
 
 ## Service SDKs
@@ -31,9 +31,9 @@ The IoT Plug and Play libraries and SDKs enable developers to build IoT solution
 |---|---|---|---|---|---|
 | .NET - IoT Hub service | [NuGet 1.27.1](https://www.nuget.org/packages/Microsoft.Azure.Devices ) | [GitHub](https://github.com/Azure/azure-iot-sdk-csharp) | [Samples](https://github.com/Azure-Samples/azure-iot-samples-csharp/tree/main/iot-hub/Samples/service/PnpServiceSamples) | N/A | [Reference](/dotnet/api/microsoft.azure.devices) |
 | Java - IoT Hub service | [Maven 1.26.0](https://mvnrepository.com/artifact/com.microsoft.azure.sdk.iot/iot-service-client/1.26.0) | [GitHub](https://github.com/Azure/azure-iot-sdk-java) | [Samples](https://github.com/Azure/azure-iot-sdk-java/tree/main/service/iot-service-samples/pnp-service-sample) | N/A | [Reference](/java/api/com.microsoft.azure.sdk.iot.service) |
-| Node - IoT Hub service | [npm 1.13.0](https://www.npmjs.com/package/azure-iothub) | [GitHub](https://github.com/Azure/azure-iot-sdk-node) | [Samples](https://github.com/Azure/azure-iot-sdk-node/tree/master/service/samples) | N/A | [Reference](/javascript/api/azure-iothub/) |
-| Python - Digital Twins service | [pip 2.2.3](https://pypi.org/project/azure-iot-hub) | [GitHub](https://github.com/Azure/azure-iot-sdk-python) | [Samples](https://github.com/Azure/azure-iot-sdk-python/tree/master/azure-iot-hub/samples) | [Interact with IoT Hub Digital Twins API](tutorial-service.md) | N/A |
-| Node - Digital Twins service | [npm 1.13.0](https://www.npmjs.com/package/azure-iot-digitaltwins-service) | [GitHub](https://github.com/Azure/azure-iot-sdk-node) | [Samples](https://github.com/Azure/azure-iot-sdk-node/tree/master/service/samples/javascript) | [Interact with IoT Hub Digital Twins API](tutorial-service.md) | N/A |
+| Node - IoT Hub service | [npm 1.13.0](https://www.npmjs.com/package/azure-iothub) | [GitHub](https://github.com/Azure/azure-iot-sdk-node) | [Samples](https://github.com/Azure/azure-iot-sdk-node/tree/main/service/samples) | N/A | [Reference](/javascript/api/azure-iothub/) |
+| Python - Digital Twins service | [pip 2.2.3](https://pypi.org/project/azure-iot-hub) | [GitHub](https://github.com/Azure/azure-iot-sdk-python) | [Samples](https://github.com/Azure/azure-iot-sdk-python/tree/main/azure-iot-hub/samples) | [Interact with IoT Hub Digital Twins API](tutorial-service.md) | N/A |
+| Node - Digital Twins service | [npm 1.13.0](https://www.npmjs.com/package/azure-iot-digitaltwins-service) | [GitHub](https://github.com/Azure/azure-iot-sdk-node) | [Samples](https://github.com/Azure/azure-iot-sdk-node/tree/main/service/samples/javascript) | [Interact with IoT Hub Digital Twins API](tutorial-service.md) | N/A |
 
 ## Next steps
 

articles/iot-dps/quick-create-simulated-device-tpm.md

@@ -588,7 +588,7 @@ In this section, you'll configure sample code to use the [Advanced Message Queui
     ```
 
     > [!NOTE]
-    > The **Azure IoT SDK for Node.js** supports additional protocols like _AMQP_, _AMQP WS_, and _MQTT WS_.  For more examples, see [Device Provisioning Service SDK for Node.js samples](https://github.com/Azure/azure-iot-sdk-node/tree/master/provisioning/device/samples).
+    > The **Azure IoT SDK for Node.js** supports additional protocols like _AMQP_, _AMQP WS_, and _MQTT WS_.  For more examples, see [Device Provisioning Service SDK for Node.js samples](https://github.com/Azure/azure-iot-sdk-node/tree/main/provisioning/device/samples).
     > 
 
 6. Add **globalDeviceEndpoint** and **idScope** variables and use them to create a **ProvisioningDeviceClient** instance. Replace **{globalDeviceEndpoint}** and **{idScope}** with the **_Global Device Endpoint_** and **_ID Scope_** values from **Step 1**:

articles/iot-dps/quick-create-simulated-device-x509.md

@@ -582,7 +582,7 @@ In this section, we'll update the sample code to send the device's boot sequence
 
 ::: zone pivot="programming-language-python"
 
-The Python provisioning sample, [provision_x509.py](https://github.com/Azure/azure-iot-sdk-python/blob/master/azure-iot-device/samples/async-hub-scenarios/provision_x509.py) is located in the `azure-iot-sdk-python/azure-iot-device/samples/async-hub-scenarios` directory. This sample uses six environment variables to authenticate and provision an IoT device using DPS. These environment variables are:
+The Python provisioning sample, [provision_x509.py](https://github.com/Azure/azure-iot-sdk-python/blob/main/azure-iot-device/samples/async-hub-scenarios/provision_x509.py) is located in the `azure-iot-sdk-python/azure-iot-device/samples/async-hub-scenarios` directory. This sample uses six environment variables to authenticate and provision an IoT device using DPS. These environment variables are:
 
 | Variable name              | Description                                     |
 | :------------------------- | :---------------------------------------------- |
@@ -647,7 +647,7 @@ The Python provisioning sample, [provision_x509.py](https://github.com/Azure/azu
     $export PASS_PHRASE=1234
     ```
 
-7. Review the code for [provision_x509.py](https://github.com/Azure/azure-iot-sdk-python/blob/master/azure-iot-device/samples/async-hub-scenarios/provision_x509.py). If you're not using **Python version 3.7** or later, make the [code change mentioned here](https://github.com/Azure/azure-iot-sdk-python/tree/master/azure-iot-device/samples/async-hub-scenarios#advanced-iot-hub-scenario-samples-for-the-azure-iot-hub-device-sdk) to replace `asyncio.run(main())`.
+7. Review the code for [provision_x509.py](https://github.com/Azure/azure-iot-sdk-python/blob/main/azure-iot-device/samples/async-hub-scenarios/provision_x509.py). If you're not using **Python version 3.7** or later, make the [code change mentioned here](https://github.com/Azure/azure-iot-sdk-python/tree/main/azure-iot-device/samples/async-hub-scenarios#advanced-iot-hub-scenario-samples-for-the-azure-iot-hub-device-sdk) to replace `asyncio.run(main())`.
 
 8. Save your changes.
 

articles/iot-dps/quick-enroll-device-x509.md

@@ -636,6 +636,6 @@ In this quickstart, you created an enrollment group for an X.509 intermediate or
 :::zone pivot="programming-language-nodejs"
 
 > [!div class="nextstepaction"]
->[Node.js device provisioning sample](https://github.com/Azure/azure-iot-sdk-node/tree/master/provisioning/device/samples).
+>[Node.js device provisioning sample](https://github.com/Azure/azure-iot-sdk-node/tree/main/provisioning/device/samples).
 
 :::zone-end

articles/iot-edge/how-to-authenticate-downstream-device.md

@@ -122,9 +122,9 @@ For X.509 self-signed authentication, sometimes referred to as thumbprint authen
 
    * C#: [Set up X.509 security in your Azure IoT hub](../iot-hub/tutorial-x509-test-certificate.md)
    * C: [iotedge_downstream_device_sample.c](https://github.com/Azure/azure-iot-sdk-c/tree/master/iothub_client/samples/iotedge_downstream_device_sample)
-   * Node.js: [simple_sample_device_x509.js](https://github.com/Azure/azure-iot-sdk-node/blob/master/device/samples/javascript/simple_sample_device_x509.js)
+   * Node.js: [simple_sample_device_x509.js](https://github.com/Azure/azure-iot-sdk-node/blob/main/device/samples/javascript/simple_sample_device_x509.js)
    * Java: [SendEventX509.java](https://github.com/Azure/azure-iot-sdk-java/tree/main/device/iot-device-samples/send-event-x509)
-   * Python: [send_message_x509.py](https://github.com/Azure/azure-iot-sdk-python/blob/master/azure-iot-device/samples/async-hub-scenarios/send_message_x509.py)
+   * Python: [send_message_x509.py](https://github.com/Azure/azure-iot-sdk-python/blob/main/azure-iot-device/samples/async-hub-scenarios/send_message_x509.py)
 
 You also can use the [IoT extension for Azure CLI](https://github.com/Azure/azure-iot-cli-extension) to complete the same device creation operation. The following example uses the [az iot hub device-identity](/cli/azure/iot/hub/device-identity) command to create a new IoT device with X.509 self-signed authentication and assigns a parent device:
 
@@ -166,9 +166,9 @@ This section is based on the IoT Hub X.509 certificate tutorial series. See [Und
 
    * C#: [Set up X.509 security in your Azure IoT hub](../iot-hub/tutorial-x509-test-certificate.md)
    * C: [iotedge_downstream_device_sample.c](https://github.com/Azure/azure-iot-sdk-c/tree/master/iothub_client/samples/iotedge_downstream_device_sample)
-   * Node.js: [simple_sample_device_x509.js](https://github.com/Azure/azure-iot-sdk-node/blob/master/device/samples/javascript/simple_sample_device_x509.js)
+   * Node.js: [simple_sample_device_x509.js](https://github.com/Azure/azure-iot-sdk-node/blob/main/device/samples/javascript/simple_sample_device_x509.js)
    * Java: [SendEventX509.java](https://github.com/Azure/azure-iot-sdk-java/tree/main/device/iot-device-samples/send-event-x509)
-   * Python: [send_message_x509.py](https://github.com/Azure/azure-iot-sdk-python/blob/master/azure-iot-device/samples/async-hub-scenarios/send_message_x509.py)
+   * Python: [send_message_x509.py](https://github.com/Azure/azure-iot-sdk-python/blob/main/azure-iot-device/samples/async-hub-scenarios/send_message_x509.py)
 
 You also can use the [IoT extension for Azure CLI](https://github.com/Azure/azure-iot-cli-extension) to complete the same device creation operation. The following example uses the [az iot hub device-identity](/cli/azure/iot/hub/device-identity) command to create a new IoT device with X.509 CA signed authentication and assigns a parent device:
 

articles/iot-edge/how-to-connect-downstream-device.md

@@ -139,7 +139,7 @@ Have two things ready before using the application-level samples:
 
 This section provides a sample application to connect an Azure IoT NodeJS device client to an IoT Edge gateway. For NodeJS applications, you must install the root CA certificate at the application level as shown here. NodeJS applications don't use the system's certificate store.
 
-1. Get the sample for **edge_downstream_device.js** from the [Azure IoT device SDK for Node.js samples repo](https://github.com/Azure/azure-iot-sdk-node/tree/master/device/samples).
+1. Get the sample for **edge_downstream_device.js** from the [Azure IoT device SDK for Node.js samples repo](https://github.com/Azure/azure-iot-sdk-node/tree/main/device/samples).
 2. Make sure that you have all the prerequisites to run the sample by reviewing the **readme.md** file.
 3. In the edge_downstream_device.js file, update the **connectionString** and **edge_ca_cert_path** variables.
 4. Refer to the SDK documentation for instructions on how to run the sample on your device.
@@ -198,7 +198,7 @@ This section introduces a sample application to connect an Azure IoT Java device
 
 This section introduces a sample application to connect an Azure IoT Python device client to an IoT Edge gateway.
 
-1. Get the sample for **send_message_downstream** from the [Azure IoT device SDK for Python samples](https://github.com/Azure/azure-iot-sdk-python/tree/master/azure-iot-device/samples/async-edge-scenarios).
+1. Get the sample for **send_message_downstream** from the [Azure IoT device SDK for Python samples](https://github.com/Azure/azure-iot-sdk-python/tree/main/azure-iot-device/samples/async-edge-scenarios).
 2. Set the `IOTHUB_DEVICE_CONNECTION_STRING` and `IOTEDGE_ROOT_CA_CERT_PATH` environment variables as specified in the Python script comments.
 3. Refer to the SDK documentation for any additional instructions on how to run the sample on your device.